| Year | 2020 |
| Date | 09-Oct |
| Volume | 225 |
| Issue | 4,649 |
| Page | 523 |
| Category | Stationary Engine |
| Part | 3 |
| Title | Grasshopper Haulage Engine - Piston Assembly |
| Author | Stewart Hart |
| Notes | Completes his trilogy of stationary engines with a grasshopper haulage engine. Valve rod guide, valve guide stuffing box, piston valve, crosshead, piston, piston rod, piston rod guide |